Built in 1891, Armenistis lighthouse stands tall at 19 meters and offers breathtaking views of the surrounding Aegean Sea and neighboring islands. 

The lighthouse is made of marble and its tower is painted white, making it visibly beautiful, especially during sunset and sunrise. 

It also houses a small museum where visitors can learn about its historical significance and the lives of its lighthouse keepers. 

Visitors can also climb to the top of the lighthouse for more breathtaking views of the island.